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. 2022 May 26:8:20552076221103336.
doi: 10.1177/20552076221103336. eCollection 2022 Jan-Dec.

Usability testing of a wireless individual indicator system application: Monitoring exposure to outdoor air pollution among Malaysian Traffic Police

Putri Anis Syahira Mohamad Jamil  1   2 , Karmegam Karuppiah  2 , Nur Athirah Diyana Mohammad Yusof  3 , Dayana Hazwani Mohd Suadi Nata  4 , Nurhanim Abdul Aziz  1 , Vivien How  2 , Shamsul Bahri Mohd Tamrin  2 , Hassan Sadeghi Naeni  5
Affiliations

Usability testing of a wireless individual indicator system application: Monitoring exposure to outdoor air pollution among Malaysian Traffic Police

Putri Anis Syahira Mohamad Jamil et al. Digit Health. .

Abstract

Objectives: Designs for low-cost air monitors and associated performance data appear in many peer-reviewed articles; however, few manuscripts provide feedback from end user's experiences or comprehensive evaluation. The present study addresses the usability of the wireless outdoor individual exposure indicator system from the viewpoint of the Malaysian Traffic Police (end users). This study is one of the first to chronicle end user experiences for low-cost pollution sensing.

Method: The evaluation involved 12 target end users to assess the usability of a prototype for Malaysian Traffic Police to manage their exposure to outdoor air pollution. The test evaluation includes a pre-test, post-task and post-test questionnaire (Post-Study System Usability Questionnaire). The main components in this Post-Study System Usability Questionnaire are Overall satisfaction, System Usefulness, Information Quality and Interface Quality.

Findings: The results of the Post-Study System Usability Questionnaire indicated the mean score of the Overall satisfaction item (2.33), System Usefulness (2.25), Information Quality (2.36) and Interface Quality (2.17) on a scale of 1-10. Prototype users were satisfied with the system because the score is close to 1 on the Post-Study System Usability Questionnaire.

Conclusions: A user-friendly wireless outdoor individual exposure indicator system is now available for Malaysian Traffic Police. Users have stated that they are happy to use the system at work. However, in addition to more technological advances, practical implementation requires evidence supporting its efficacy, viability and effectiveness.

Keywords: Usability; air pollution; occupational exposure; occupational health; user feedback.

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Conflict of interest statement

Declaration of conflicting interests: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Figures

Figure 1.
Figure 1.
Overview of the website.
Figure 2.
Figure 2.
Smartphone application.
Figure 3.
Figure 3.
Summary of heuristic evaluation.
See this image and copyright information in PMC

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